# HG changeset patch
# User Bernhard Urban <bernhard.urban@jku.at>
# Date 1417691607 -3600
# Node ID 20e498cfa409cb1a42bf705dd7fba81bddfb9907
# Parent  6a6291c31657920dec2332614f57c2a3728f4b92
checkcastArraycopy: if src and dest are equal, unchecked variant can be used

diff -r 6a6291c31657 -r 20e498cfa409 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopySnippets.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopySnippets.java	Wed Dec 03 20:40:30 2014 +0100
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/arraycopy/ArrayCopySnippets.java	Thu Dec 04 12:13:27 2014 +0100
@@ -191,7 +191,8 @@
         Object nonNullDest = guardingNonNull(dest);
         checkLimits(nonNullSrc, srcPos, nonNullDest, destPos, length);
         if (probability(SLOW_PATH_PROBABILITY, nonNullSrc == nonNullDest)) {
-            System.arraycopy(nonNullSrc, srcPos, nonNullDest, destPos, length);
+            // no storecheck required.
+            ArrayCopyCallNode.arraycopy(nonNullSrc, srcPos, nonNullDest, destPos, length, Kind.Object, false, false);
         } else {
             KlassPointer destElemKlass = loadHub(nonNullDest);
             checkcastArraycopyHelper(srcPos, destPos, length, nonNullSrc, nonNullDest, destElemKlass);